FUEL-AIR PRE-MIXER WITH PREFILMER

A fuel-air premixer for a combustor of a gas turbine engine includes a central passage disposed along an axis and operable to communicate a first airflow and an outer annular passage about the axis operable to communicate a second airflow. The fuel-air premixer further includes an inner annular pass...

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Bibliographische Detailangaben
Hauptverfasser: COHEN, JEFFREY M, GREEN, KEVIN E, DAI, ZHONGTAO
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A fuel-air premixer for a combustor of a gas turbine engine includes a central passage disposed along an axis and operable to communicate a first airflow and an outer annular passage about the axis operable to communicate a second airflow. The fuel-air premixer further includes an inner annular passage about the axis and between the central passage and the outer annular passage for communicating fuel flow. The inner annular passage including an inner exit angled for directing fuel flow toward the axis into a mixer passage downstream of the outer and inner exits for mixing the fuel flow with the first and second airflows.